Exam 2 - Chapter 8 Kines Book

Question 1

The body structures that provide motion at the elbow and the forearm. Includes the humeroulnar joint and the humeroradial joint. Its primary role is positioning and stabilizing the hand.

Answer 1

Elbow complex

Question 2

Where is the proximal radioulnar joint located?

Answer 2

the forearm

Question 3

These are seen in individuals who perform tasks that are repetitive and resistive. Signs and symptoms: pain, fatigue, tingling, numbness, and decreased function.

Answer 3

Repetitive Stress Injuries (aka repetitive motion injuries or cumulative trauma disorders).

Question 4

RSIs

Answer 4

Repetitive Stress Injuries.

Question 5

The angle formed by the long axis of the humerus and forearm.

Answer 5

carrying angle

Question 6

Name the elbow flexors (there are four)

Answer 6

biceps brachii, brachialis, brachioradialis, and pronator teres

Question 7

Name the elbow extensors (there are two and they are attached to the ulna)

Answer 7

triceps and anconeus

Question 8

Muscles that work together in opposite directions to produce a stronger functional movement and stabilize the joint. Example: triceps/biceps

Answer 8

force couples

Question 9

Symptoms include activity-related tingling and numbness in the ring and small fingers of the hand (possibly worse at night) and pain in the medial elbow.

Answer 9

cubital tunnel syndrome (ulnar nerve entrapment)

Question 10

The tendon at the radial tuberosity tears or ruptures.
Signs and symptoms: a pop in the elbow, pain in the elbow that subsides 1 or 2 weeks after the injury, visible swelling and bruising at the elbow, weakness with elbow flexion and forearm supination, and a bulging in the upper arm.

Answer 10

distal biceps tendon rupture

Question 11

Inflammation and pain in the elbow (at the lateral epicondyle) caused from overuse. Other symptoms include a weak grip, and exacerbated pain when lifting an object with the forearm in pronation. Caused by microscopic tears in the ECRB tendon.

Answer 11

lateral epicondylitis (Tennis Elbow)

Question 12

Treatment for tennis elbow includes:

Answer 12

• client education, rest
• ergonomic considerations
• bracing
• use of cold and heat
• stretching
• scar mobilization
• strengthening

Question 13

This is the study of the interaction between human capabilities and the demands of their occupational roles. Concerns adaptations to an individual’s physical environment.

Answer 13

Ergonomics

Question 14

The primary supinator of the radioulnar joint.

Answer 14

Biceps brachii

Question 15

The secondary forearm supinator (radioulnar joint)

Answer 15

Supinator muscle

Question 16

Muscles responsible for forearm pronation (there are two).

Answer 16

Pronator teres and pronator quadratus

Question 17

This ligament attaches proximally at the lateral epicondyle and distally on the annular ligament and on the ulna.
Stabilizes the ulnohumeral and radiohumeral joints when using the elbow resistively.

Answer 17

Lateral Collateral Ligament (LCL)

Question 18

Protects the stability of the elbow joint against excessive valgus stress (especially when the elbow is flexed between 60 - 90 degrees). Attaches proximally at the medial epicondyle of the humerus and attaches distally to the medial sides of the olecranon and coronoid processes.

Answer 18

Medial Collateral Ligament (MCL)

Question 19

A strong, broad band that surrounds the radial head and binds it to the ulna. Prevents subluxation of the head of the radius and protects against dislocation of the proximal radioulnar joint.

Answer 19

annular ligament

Question 20

Supports radius and ulna keeping them from separating through the length of the forearm.

Answer 20

Interosseous Membrane (IM)

Question 21

Elbow ROM required to perform the majority of ADL tasks is between ____ and ____ degrees of flexion and extension

Answer 21

30 and 130

Question 22

MMT

Answer 22

Manual Muscle Testing

Question 23

Forearm supination and pronation used is ____ degrees each for a total arc of motion of ____ degrees

Answer 23

50, 100

Question 24

Carrying angle in women is typically about ____ to ___ degrees, while carrying angle for men is about ____ degrees

Answer 24

10 to 15 for women, 5 for men

Question 25

Women carry plate _____, while men carry plate _____

Answer 25

to side, to front

Question 26

Elbow joint needs to be strong to withstand forces _____ the weight of the body

Answer 26

1-3 times

Question 27

Biceps muscle is a stronger flexor muscle when combined with what?

Answer 27

forearm supination

Question 28

What muscle contributes to elbow flexion only against resistance?

Answer 28

Pronator teres